[ryan300]

after months of research I’ve narrowed it down to three options 1) buying a 4t3/9 and swapping the r oil pan and head and calling it a day 2) the same as option 1 but swapping in the crank and rods from the 4t4 for the 93.5 mm stroke 3) or throwing k1 forged conrods wiesco forged pistons and the 4t4 crank for a built 4t3/9 with the better 93.5 mm stroke. If you guys could let me know what ballpark hp/tq numbers i could make reliably with each setup that would also be great

 

[ryan300]

I’ll also mention that i want to run a big turbo setup and am aiming for ~500-600bhp but i would still be open to getting the ipd 4t4 turbo upgrade if those numbers aren’t attainable with any of the setups I mentioned

 

[tabormeister]

A tuner like Contrast or Rolling Motors would probably know specifics on numbers. Or a lurker like @dougy lol

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[CKAVolvo]

450 o 500 is reasonable to do. Above 500 takes some patients and time. Not many good options for intake and Exhaust Manifold. Milletech is the go-to but aven heard back from Nikola, Trying to get some titanium exhaust tips

 

[martynunya]

I think that with any of those options you can get to 500whp with stock intake/exhaust manifolds. I would go the forged rods and pistons route personally just for added insurance.

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[Turbo the World]

I think that with any of those options you can get to 500whp with stock intake/exhaust manifolds. I would go the forged rods and pistons route personally just for added insurance.

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Doesn't re-volvo sell an R exhaust manifold with a T3 flange? And also doesn't Milletech make high-performance
intake and exhaust manifolds?

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[Enraged]

I'd go the Dougy route, and weld/machine an adapter to the stock manifold to run a regular T3 turbo. Look up his build thread, tons of great info.

Like this: GT3582R T3 exhaust housing with 45mm WG hole &amp...

 

[ScottishBrick]

Or....

 

[Enraged]

^That plus this would make it easier: Special Turbine Housing GT/GTX30 T3 Inlet, Cast 44mm EWG Port : atpturbo.com

 

[martynunya]

Doesn't re-volvo sell an R exhaust manifold with a T3 flange? And also doesn't Milletech make high-performance
intake and exhaust manifolds?

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I'm sure they do, my point is that for 500whp you don't need an equal length exhaust manifold. That level of power can be reached with a stock manifold or a Japanifold. It may definitely require modification if the flange depending on your turbo. Mine are vband flanges welded to the manifold flange.

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[Turbo the World]

I'm sure they do, my point is that for 500whp you don't need an equal length exhaust manifold. That level of power can be reached with a stock manifold or a Japanifold. It may definitely require modification if the flange depending on your turbo. Mine are vband flanges welded to the manifold flange.

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More of just bringing up the manifold options I know of

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[CKAVolvo]

The top of the line Milletch will cost as much as some whole cars, But they are well designed